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摘要 根据烟气流动的原理和特点，针对体育馆类大空间建筑自然排烟过程中主要受到来自空间结构、火灾规模、室内外环境温度、室外风等因素的影响进行了分析和讨论，并得到了一些具有实际意义和参考价值的结论。 关键词 大空间建筑 建筑火灾 自然排烟 影响因素 Influencing factors of natural smoke extraction in large space gymnasium buildings By Li Xiaoli, Li Shuai and Zhao Nan Abstract According to the smoke movement principles and characteristics, analyses and discusses the influence of the spatial structure, fire size, indoor and outdoor temperature, outdoor air and other factors on natural smoke extraction process in large space buildings, and obtains some conclusions with practical significance and reference value. Keywords large space building, building fire, natural smoke extraction, influencing factor